offline-db/aniscrap_core/settings.py

"""
Django settings for AniScrap project.
"""

import os
from pathlib import Path
import logging
from celery.schedules import crontab
try:
    from dotenv import load_dotenv
    load_dotenv()
except ImportError:
    pass

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.getenv('DJANGO_SECRET_KEY')
if not SECRET_KEY:
    if os.getenv('DEBUG', 'False') == 'True':
        SECRET_KEY = 'django-insecure-aniscrap-dev-key'
    else:
        from django.core.exceptions import ImproperlyConfigured
        raise ImproperlyConfigured("The DJANGO_SECRET_KEY setting must not be empty.")

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = os.getenv('DEBUG', 'False') == 'True'

ALLOWED_HOSTS = os.getenv('ALLOWED_HOSTS', '127.0.0.1,localhost').split(',')


# Security Hardening
SECURE_BROWSER_XSS_FILTER = True
SECURE_CONTENT_TYPE_NOSNIFF = True
X_FRAME_OPTIONS = 'DENY'
SECURE_REFERRER_POLICY = 'strict-origin-when-cross-origin'

# Session Cookie Security
SESSION_COOKIE_SECURE = True
SESSION_COOKIE_HTTPONLY = True
SESSION_COOKIE_SAMESITE = 'Lax'

# CSRF Trusted Origins
CSRF_TRUSTED_ORIGINS = os.getenv('CSRF_TRUSTED_ORIGINS', 'https://localhost,https://127.0.0.1').split(',')

if not DEBUG:
    # SECURE_SSL_REDIRECT = True
    CSRF_COOKIE_SECURE = True
    SECURE_HSTS_SECONDS = 31536000  # 1 year
    SECURE_HSTS_INCLUDE_SUBDOMAINS = True
    SECURE_HSTS_PRELOAD = True


# Application definition

INSTALLED_APPS = [
    "daphne",
    "channels",
    # Dependencies for Unfold contrib (Kept for compatibility if used elsewhere, but Unfold removed)
    "import_export",
    "guardian",
    "simple_history",
    # Third Party
    "rest_framework",
    "rest_framework_simplejwt",
    "django_filters",
    "corsheaders",
    "django_celery_results",
    "drf_spectacular",

    "unfold",  # Added Unfold Theme
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "django.contrib.sites",
    "django.contrib.sitemaps",

    # Local Apps
    "core",
    "content",
    "users",
    "billing",
    "scraper_module",
    "apps.watchparty",
]

SITE_ID = 1

AUTH_USER_MODEL = "users.User"

MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "core.middleware.SecurityHeadersMiddleware",
    "django.contrib.sessions.middleware.SessionMiddleware",
    "corsheaders.middleware.CorsMiddleware",
    "django.middleware.common.CommonMiddleware",
    "django.middleware.csrf.CsrfViewMiddleware",
    "csp.middleware.CSPMiddleware",
    "aniscrap_core.middleware.security.SecurityHeadersMiddleware",
    "django.contrib.auth.middleware.AuthenticationMiddleware",
    "django.contrib.messages.middleware.MessageMiddleware",
    "django.middleware.clickjacking.XFrameOptionsMiddleware",
]

ROOT_URLCONF = "aniscrap_core.urls"


TEMPLATES = [
    {
        "BACKEND": "django.template.backends.django.DjangoTemplates",
        "DIRS": [BASE_DIR / 'templates'],
        "APP_DIRS": True,
        "OPTIONS": {
            "context_processors": [
                "django.template.context_processors.request",
                "django.contrib.auth.context_processors.auth",
                "django.contrib.messages.context_processors.messages",
                "django.template.context_processors.media",
                "core.context_processors.site_settings", # I'll also add this for Footer
            ],
        },
    },
]

WSGI_APPLICATION = "aniscrap_core.wsgi.application"
ASGI_APPLICATION = "aniscrap_core.asgi.application"


# Database
# https://docs.djangoproject.com/en/6.0/ref/settings/#databases

USE_SQLITE = os.getenv('USE_SQLITE', 'False') == 'True'

if USE_SQLITE:
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.sqlite3",
            "NAME": BASE_DIR / "db.sqlite3",
        }
    }
else:
    DATABASES = {
        "default": {
            "ENGINE": "django.db.backends.mysql",
            "NAME": os.getenv('DB_NAME', 'aniscrap'),
            "USER": os.getenv('DB_USER', 'root'),
            "PASSWORD": os.getenv('DB_PASSWORD', ''),
            "HOST": os.getenv('DB_HOST', '127.0.0.1'),
            "PORT": os.getenv('DB_PORT', '3306'),
            'OPTIONS': {
                'init_command': "SET sql_mode='STRICT_TRANS_TABLES'",
                'charset': 'utf8mb4',
            },
        }
    }


# Authentication Backends
AUTHENTICATION_BACKENDS = (
    "django.contrib.auth.backends.ModelBackend",
    "guardian.backends.ObjectPermissionBackend",
)

# Password Hashing
PASSWORD_HASHERS = [
    "django.contrib.auth.hashers.Argon2PasswordHasher",
    "django.contrib.auth.hashers.PBKDF2PasswordHasher",
    "django.contrib.auth.hashers.PBKDF2SHA1PasswordHasher",
    "django.contrib.auth.hashers.BCryptSHA256PasswordHasher",
]

# Password validation
AUTH_PASSWORD_VALIDATORS = [
    {
        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
    },
    {
        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
    },
    {
        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
    },
    {
        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
    },
]


# Internationalization
LANGUAGE_CODE = "en-us"
TIME_ZONE = "UTC"
USE_I18N = True
USE_TZ = True

LANGUAGES = [
    ('en', 'English'),
    ('tr', 'Turkish'),
]
LOCALE_PATHS = [BASE_DIR / 'locale']


# Static files (CSS, JavaScript, Images)
STATIC_URL = "static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
STATICFILES_DIRS = [BASE_DIR / "static"]

# Media files
MEDIA_URL = "media/"
MEDIA_ROOT = BASE_DIR / "media"


# Caching - Native Django cache framework configured for Redis Caching Strategy
if os.getenv('USE_SQLITE', 'False') == 'True':
    CACHES = {
        "default": {
            "BACKEND": "django.core.cache.backends.locmem.LocMemCache",
        }
    }
    CHANNEL_LAYERS = {
        "default": {
            "BACKEND": "channels.layers.InMemoryChannelLayer"
        }
    }
else:
    CACHES = {
        "default": {
            "BACKEND": "django.core.cache.backends.redis.RedisCache",
            "LOCATION": os.getenv('REDIS_URL', 'redis://127.0.0.1:6379/1'),
        }
    }
    CHANNEL_LAYERS = {
        "default": {
            "BACKEND": "channels_redis.core.RedisChannelLayer",
            "CONFIG": {
                "hosts": [os.getenv('REDIS_URL', 'redis://127.0.0.1:6379/1')],
            },
        }
    }

# Celery Configuration
if USE_SQLITE:
    CELERY_BROKER_URL = 'memory://'
    CELERY_TASK_ALWAYS_EAGER = True
else:
    CELERY_BROKER_URL = os.getenv('CELERY_BROKER_URL', 'redis://127.0.0.1:6379/0')

CELERY_RESULT_BACKEND = 'django-db'
CELERY_ACCEPT_CONTENT = ['application/json']
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
CELERY_TIMEZONE = TIME_ZONE


# Email Configuration
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = os.getenv('EMAIL_HOST', 'smtp.gmail.com')
EMAIL_PORT = int(os.getenv('EMAIL_PORT', 587))
EMAIL_USE_TLS = True
EMAIL_HOST_USER = os.getenv('EMAIL_USER')
EMAIL_HOST_PASSWORD = os.getenv('EMAIL_PASSWORD')
DEFAULT_FROM_EMAIL = EMAIL_HOST_USER

# Footer Details
SITE_NAME = "AniScrap"
SITE_URL = os.getenv('SITE_URL', 'http://127.0.0.1:8000')
SITE_AUTHOR = "Barış Keser"
CONTACT_EMAIL = "info@bariskeser.com"


# CORS Configuration
CORS_ALLOW_ALL_ORIGINS = os.getenv('CORS_ALLOW_ALL_ORIGINS', 'False') == 'True'
SHOPIER_SECRET = os.getenv('SHOPIER_SECRET')

if not SHOPIER_SECRET and not DEBUG:
    from django.core.exceptions import ImproperlyConfigured
    raise ImproperlyConfigured("SHOPIER_SECRET is not set in production. Billing callbacks will fail.")

# Content Security Policy (CSP)
CSP_DEFAULT_SRC = ("'self'", "cdn.jsdelivr.net", "cdn.tailwindcss.com", "cdn.plyr.io")
CSP_SCRIPT_SRC = ("'self'", "cdn.jsdelivr.net", "cdn.tailwindcss.com", "cdn.plyr.io")
CSP_INCLUDE_NONCE_IN = ('script-src',)
CSP_STYLE_SRC = ("'self'", "'unsafe-inline'", "cdn.jsdelivr.net", "cdn.tailwindcss.com", "cdn.plyr.io", "fonts.googleapis.com")
CSP_IMG_SRC = ("'self'", "data:", "cdn.jsdelivr.net", "cdn.tailwindcss.com", "cdn.plyr.io", "i.ytimg.com", "img.youtube.com")
CSP_FONT_SRC = ("'self'", "fonts.gstatic.com", "cdn.jsdelivr.net")
CSP_MEDIA_SRC = ("'self'", "blob:", "cdn.plyr.io")
CSP_CONNECT_SRC = ("'self'", "ws:", "wss:")
CSP_FRAME_SRC = ("'self'",)

# Unfold Admin Theme Configuration
UNFOLD = {
    "DASHBOARD_CALLBACK": "core.dashboard.dashboard_callback",
    "SITE_TITLE": "AniScrap Admin",
    "SITE_HEADER": "AniScrap Admin",
}

# Default Primary Key Field Type
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

# Auth
LOGIN_URL = '/admin/login/'
LOGIN_REDIRECT_URL = '/profile/'

# REST Framework Configuration
REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
        'rest_framework.authentication.SessionAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.IsAuthenticatedOrReadOnly',
    ],
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 20,
    'DEFAULT_SCHEMA_CLASS': 'drf_spectacular.openapi.AutoSchema',
    'DEFAULT_FILTER_BACKENDS': ['django_filters.rest_framework.DjangoFilterBackend'],
    'DEFAULT_THROTTLE_CLASSES': [
        'rest_framework.throttling.AnonRateThrottle',
        'rest_framework.throttling.UserRateThrottle'
    ],
    'DEFAULT_THROTTLE_RATES': {
        'anon': '1000/day',
        'user': '10000/day',
        'subscribe': '60/minute',
        'notifications': '100/minute',
        'login': '5/minute',
        'watchlog': '10/minute',
        'review': '5/hour',
    }
}

from datetime import timedelta
SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(minutes=60),
    'REFRESH_TOKEN_LIFETIME': timedelta(days=7),
    'ROTATE_REFRESH_TOKENS': True,
    'BLACKLIST_AFTER_ROTATION': True,
}

# Spectacular Configuration
SPECTACULAR_SETTINGS = {
    'TITLE': 'AniScrap API',
    'DESCRIPTION': 'AniScrap platform API documentation',
    'VERSION': '1.0.0',
    'SERVE_INCLUDE_SCHEMA': False,
    'COMPONENT_SPLIT_REQUEST': True,
}

# CORS Configuration
CORS_ALLOWED_ORIGINS = [
    "http://localhost:3000",
    "http://localhost:3001",
    "http://127.0.0.1:3000",
]
CORS_ALLOW_CREDENTIALS = True